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Power Electronics

Gate Characteristics of Thyristor

Tanus Bikram Malla January 25, 2022 0 Comments

Gate Characteristics of Thyristor: In order to trigger a thyristor, a positive gate to cathode voltage, Vg, and positive gate to cathode current Ig is applied. Both Vg and Ig…

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Power Electronics

Switching Characteristics of Thyristor

Tanus Bikram Malla August 27, 2021 0 Comments

Switching Characteristics of Thyristor: The thyristor is subjected to various voltages or currents during its turn-on and turn-off processes. Due to the applied voltage and current variation, we obtain the…

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Power Electronics

Single Phase Semi Converter

Tanus Bikram Malla August 14, 2021 0 Comments

Single-Phase Semi Converter: Single Phase Semi Converter is also known as a half-controlled converter. A single-phase half controlled or semi converter utilizes SCRs(thyristor) and diodes to convert AC power to…

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Power Electronics

Single Phase Full Converter

Tanus Bikram Malla August 10, 2021 0 Comments

Single-Phase Full Converter: Single-Phase Full Converter converts the AC signal to DC signal and utilizes thyristor only. The utilization of thyristor only for the conversion process makes it fully controllable…

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Power Electronics

Thyristor Protection

Tanus Bikram Malla December 11, 2020 7 Comments

Thyristor Protection: Thyristor protection is needed to ensure that its specified ratings are not exceeded during its operation. We apply the following measures for thyristor protection. di/dt Protection When VAK> 0…

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Power Electronics

Thyristor Triggering Methods

Tanus Bikram Malla December 8, 2020 0 Comments

Thyristor Triggering Methods: We make use of various thyristor triggering methods to turn on the thyristor or to make the thyristor work in the conduction mode of operation. When (voltage…

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Power Electronics

What is Thyristor?

Tanus Bikram Malla December 7, 2020 2 Comments

Thyristor: Bell laboratories were the first to fabricate a silicon-based semiconductor device called thyristor. Semiconductor devices having characteristics similar to thyristor are TRIAC, DIAC, silicon controlled switch, GTO, RCT, etc….

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Power Electronics

Power Diode

Tanus Bikram Malla December 3, 2020 4 Comments

Power Diode: A power diode is a p-n junction device that has some constructional changes compared to low power signal diodes and is rated for kilovolts, kilo amperes, and kilowatts….

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Power Electronics

Harmonics

Tanus Bikram Malla December 1, 2020 1 Comment

Harmonics: Harmonics are the non-fundamental components of current or voltage injected into the system due to switching or non-linear load connected in the system. Due to this current and voltage…

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Power Electronics

Power Electronics

Tanus Bikram Malla November 26, 2020 0 Comments

Power Electronics: Power electronics is a subject that deals with apparatus or equipment that are working on the principle of Electronics but at high power level than signal power level….

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